Create a sentence with abnegate?

Example sentence - We like to create new flavors for ice cream.

HE took the car in defiance of his father. or he looked into her eyes and saw a flash of defiance.

It's a long walk to the end of my driveway where the paperboy always drops the newspaper, so I trained my dog to fetch it.

He had only asked her to marry him facetiously, and he thought he'd made that clear by presenting her with a Ring-Pop candy ring, but she took it seriously and next thing he knew, they were walking...

a sentence for their